Just got a Samsung 4 s zoom- last week it synched to my Yahpp calendar ONCE! then it would not synch at all. Then on Thursday it did a synch on its own and was working great. Today it was working as I put some new appts in my yahoo calendat and they chowed up on the Samsung. Then an hour later, the Samsung had deleted ALMOST all of the appts for January and Feb. Any one have this happen? Any suggestions on how to get it to synch again? I am on ATT.